In challenging conditions such as those of the San Juan de Marcona coastal desert, ensuring the waterproofing of tailings dams in mining projects requires solutions with high technical performance and operational efficiency. For Phase II of the Mina Justa Project’s tailings dam, approximately 20 hectares were waterproofed with geomembranes designed to provide a reliable and durable barrier against waste seepage. These geomembranes stand out for their high resistance to chemical and physical degradation, allowing them to maintain their long-term integrity in harsh environments.

Their rapid installation allowed for optimized resources and execution times, and their flexibility allowed them to adapt to the terrain’s geometry. Thus, this solution not only reinforces the project’s environmental safety but also adds value in terms of sustainability and impact control in one of the most sensitive sectors of the mining process.

As part of the closure of environmental liabilities in the country, the Excélsior project became one of the most representative mining remediation processes in Peru and Latin America. Located in Cerro de Pasco, this landfill accumulated more than 55 million tons of waste over a 69-hectare area. The implemented solution included integrated physical, chemical, and hydrological stability measures to mitigate the risks of contamination in the area.

The incorporated cover system combines low-permeability geomembranes and materials resistant to physical and chemical degradation, ensuring an effective barrier against the generation of acid drainage. In addition to its high technical performance against chemical agents, it represents a sustainable measure that optimizes natural resources and improves environmental quality in areas affected by mining activity.

In challenging conditions such as those of the San Juan de Marcona coastal desert, ensuring the waterproofing of tailings dams in mining projects requires solutions with high technical performance and operational efficiency. For Phase II of the Mina Justa Project’s tailings dam, approximately 20 hectares were waterproofed with geomembranes designed to provide a reliable and durable barrier against waste seepage. These geomembranes stand out for their high resistance to chemical and physical degradation, allowing them to maintain their long-term integrity in harsh environments.

Their rapid installation allowed for optimized resources and execution times, and their flexibility allowed them to adapt to the terrain’s geometry. Thus, this solution not only reinforces the project’s environmental safety but also adds value in terms of sustainability and impact control in one of the most sensitive sectors of the mining process.

As part of the closure of environmental liabilities in the country, the Excélsior project became one of the most representative mining remediation processes in Peru and Latin America. Located in Cerro de Pasco, this landfill accumulated more than 55 million tons of waste over a 69-hectare area. The implemented solution included integrated physical, chemical, and hydrological stability measures to mitigate the risks of contamination in the area.

The incorporated cover system combines low-permeability geomembranes and materials resistant to physical and chemical degradation, ensuring an effective barrier against the generation of acid drainage. In addition to its high technical performance against chemical agents, it represents a sustainable measure that optimizes natural resources and improves environmental quality in areas affected by mining activity.